MCX (Micro Coaxial) connectors are 30% smaller than SMB connectors, yet have the same size inner contacts and dimensions.  They feature easy snap-on connection and support a bandwidth from DC to 6 GHz.  These connectors are used in applications requiring tight spacing and light weight. The MMCX (Micro Miniature Coaxial) connectors are similar to MCX connectors but smaller.  They offer optimum versatility for use on today’s circuit boards with a lock-snap connection and 360 degrees of rotational freedom.  The MMCX connectors have a broadband capability from DC to 6 GHz and are ideal for applications where small size and light weight are critical such as antenna connectors on Wi-Fi Mini PCI cards.